Study on Deformation and Safety Control of Shield Tunnel Passing Through Under Intercity High-Speed Railway Bridge
WANG Hong-tao1, XIONG Zhao-hui2, WU Xian-guo3
1.China Construction Third Engineering Bureau Infrastructure Engineering Co., Ltd.; 2.China Railway No.4 Survey and Design Institute Group Co., Ltd.; 3.School of Civil Engineering and Mechanics, Huazhong University of Science and Technology
A subway line in Wuhan city passes through under an intercity high-speed railway bridge. To guarantee the safety of existing railway operation during shield construction, relevant treatment schemes and protection measures were proposed on the aspects of interval line optimization, strengthening tunnel segment design, setting of isolation protection, speed limitation, ground grouting and shield construction control, etc.; Finite-difference analysis software FLAC3D was used to create a three-dimensional numerical model. The analysis result showed that the intercity high-speed railway bridge deformation caused by shield tunnel construction is acceptable.
WANG Hong-tao,XIONG Zhao-hui,WU Xian-guo. Study on Deformation and Safety Control of Shield Tunnel Passing Through Under Intercity High-Speed Railway Bridge[J]. Architecture Technology, 2019, 50(5): 524-.